"When we look at an object, be it a pencil or the clock on the wall, our brains instantly recognize it for what it is. We may also make other snap observations about the object's position, or how many of the object there are, or the environment of the object. The mechanism by which the brain achieves this feat however is not nearly as simple as it sounds. There is a complex neural process by which our brains receive a retinal image and classify that data in terms of identity and visual/spatial characteristics so that it can be cognitively manipulated. Moreover, the image received by the retina often contains many additional pieces of accompanying and competing information which are successfully differentiated, filtered or ignored. The seemingly simple simple process by which the brain solves problems of object recognition is actually the result of multiple and highly complex processes including memory and our ability to understand the object and our relationship to it, within 3 dimensional space and logical context. Studies have shown that our ability to perceive, filter, identify and cognitively process large quantities and varieties of visual information, and the rate at which we do so, can be exercised and improved."
- Michael Levy, Ph.D